CVE-2021-30633

CriticalActively exploited (CISA KEV)

Description

Use after free in Indexed DB API in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

SeverityCritical

CVSS9.6

Exploit probability—

Product

Google Chromium Indexed DB API

PublishedOct 8, 2021

First seenOct 8, 2021

Added to KEVNov 3, 2021

Weakness typeCWE-416Use after free

How to fix

CISA required action

Apply updates per vendor instructions.

CISA due date: Nov 17, 2021

Update

google chrome93.0.4577.82 or later

Vendor advisories

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4DDW7HAHTS3SDVXBQUY4SURELO5D4X7R/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PM7MOYYHJSWLIFZ4TPJTD7MSA3HSSLV2/

Affected products

Product	Affected versions	Fixed in
google chrome	v < 93.0.4577.82	93.0.4577.82
fedoraproject fedora	33, 35	—

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